Break in program? >3000 and the car "is" stronger?

chris410 · 10-27-2009, 10:29 PM

Does anyone know if the 370 has a break in program? This sounds a bit odd but my car seems to have gotten quite a bit faster. Before anyone points out cooler weather, I have noticed the results in warm weather as well. Tire pressures are checked and consistent as well.

When I first bought the car it felt strong but not really "that" strong however, since it hit around 3000 miles the car now really feels and is stronger. 2nd gear will spin the tires in a straight line and from a stop, first gear all the way through most of 2nd if not all of 2nd, it did not do this when I first bought the car. Even if I am at a higher speed when I accelerate hard it jumps up to speed faster than it did when I first bought the car.

I am not complaining, just wondering if Nissan had some sort of break in program in the ECU or if some mapping changed once it hit 3000 miles.

Anyone else notice the difference? I have to say I am pretty impressed, not bad for a stock car!

zilent_jay · 10-27-2009, 10:38 PM

Yes the ECU is programmed with an initial vtak routine for break-in, which is bypassed once you reach 3000 miles.

Trips · 10-28-2009, 01:06 AM

new motors are a little tight and with 3000 miles your baby is nicely broken in, that's why there's the butt dyno feeling of more power thru the gears.

Chan Chee Hoe · 10-28-2009, 07:43 AM

Quote:

Originally Posted by zilent_jay

Yes the ECU is programmed with an initial vtak routine for break-in, which is bypassed once you reach 3000 miles.

Really.?Never heard before...

chris410 · 10-28-2009, 08:09 AM

Quote:

Originally Posted by zilent_jay

Yes the ECU is programmed with an initial vtak routine for break-in, which is bypassed once you reach 3000 miles.

That was my thought, I know a lot of car makers will program the car to run slightly richer, pull timing, etc...for a set number of time and or miles.

Thanks!

370Zsteve · 10-28-2009, 09:07 AM

Quote:

Originally Posted by zilent_jay

Yes the ECU is programmed with an initial vtak routine for break-in, which is bypassed once you reach 3000 miles.

Really? I've never read that. Do you have a link to support that? I'd like to read it. What's a vtak? The only def of vtak I could find was in the Urban Dictionary.

v-tak. variable transistor accumulator kineticizer

Johnny Ricer:"once that V-TAK kicks in im gone"

Urban Dictionary: V-TAK

kenchan · 10-28-2009, 10:26 AM

Quote:

Originally Posted by 370Zsteve

Johnny Ricer:"once that V-TAK kicks in im gone"

lovethe370z · 10-28-2009, 10:43 AM

My first instinct is to say that your tires are loosing their stickiness. But after reading the posts ahead of me, I think it is pretty neat if they actually have a 3k mi break-in

Modshack · 10-28-2009, 10:59 AM

Quote:

Originally Posted by lovethe370z

My first instinct is to say that your tires are loosing their stickiness. But after reading the posts ahead of me, I think it is pretty neat if they actually have a 3k mi break-in

Jeeze you guys are gullible..... Your ECU is fully adapted within a 100 miles...

Doing the burnouts is reducing the diameter of your rear tires, so it feels faster, just like putting in gears... The Vette guys do this all the time. Keep it up and you'll learn the true meaning of "break" in...

Uh....Just for the suckers, that's a joke too...

The reality is, this motor is tight when new (reason for high oil temps) As it breaks in and loosens up, clearances improve, friction is reduced and oil temps go down. Some motors take longer to reach their sweet spot than others. The VQ seems one of those that takes awhile. At 4K mine is stronger now than ever...

Matt · 10-28-2009, 11:39 AM

The break-in period isn't over until your "V-TAK" kicks in.

kenchan · 10-28-2009, 11:50 AM

Quote:

Originally Posted by Modshack

Doing the burnouts is reducing the diameter of your rear tires, so it feels faster, just like putting in gears...

in my case i got impatient and ran smaller profile on my dd... 55 to 50.

and it has VTEC...so i must be going real fast by now..

10-27-2009, 10:29 PM	#1 (permalink)
chris410 Enthusiast Member Join Date: Jul 2009 Location: Virginia Posts: 345 Drives: 10' GT500 Rep Power: 16	Break in program? >3000 and the car "is" stronger? Does anyone know if the 370 has a break in program? This sounds a bit odd but my car seems to have gotten quite a bit faster. Before anyone points out cooler weather, I have noticed the results in warm weather as well. Tire pressures are checked and consistent as well. When I first bought the car it felt strong but not really "that" strong however, since it hit around 3000 miles the car now really feels and is stronger. 2nd gear will spin the tires in a straight line and from a stop, first gear all the way through most of 2nd if not all of 2nd, it did not do this when I first bought the car. Even if I am at a higher speed when I accelerate hard it jumps up to speed faster than it did when I first bought the car. I am not complaining, just wondering if Nissan had some sort of break in program in the ECU or if some mapping changed once it hit 3000 miles. Anyone else notice the difference? I have to say I am pretty impressed, not bad for a stock car! __________________ Chris Current: 2014 WRX Stage I + SPT / 2013 Hayabusa 202HP Former:09 370Z 7-AT PW/Ark Type 2 exhaust/Evo R lip/TSW Nurburgring carbon

10-28-2009, 01:06 AM	#3 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,730 Drives: 🔰 Rep Power: 10	new motors are a little tight and with 3000 miles your baby is nicely broken in, that's why there's the butt dyno feeling of more power thru the gears. __________________

10-28-2009, 10:43 AM	#8 (permalink)
lovethe370z Base Member Join Date: Sep 2009 Location: MARYLAND Posts: 182 Drives: 2010 370z Coupe Rep Power: 16	My first instinct is to say that your tires are loosing their stickiness. But after reading the posts ahead of me, I think it is pretty neat if they actually have a 3k mi break-in __________________ 2010 370z Coupe Touring, Sport, Nav 6MT Red/Black

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10-27-2009, 10:38 PM	#2 (permalink)
zilent_jay Base Member Join Date: May 2009 Location: OKC Posts: 96 Drives: 2009 MB Base Sport Rep Power: 16	Yes the ECU is programmed with an initial vtak routine for break-in, which is bypassed once you reach 3000 miles.

10-28-2009, 11:39 AM	#10 (permalink)
Matt A True Z Fanatic Join Date: Oct 2009 Location: Augusta, GA Age: 41 Posts: 1,680 Drives: 2010 Avalanche LT Rep Power: 19	The break-in period isn't over until your "V-TAK" kicks in.